New, Improved Robot Slaves: Now with Artmaking Ability

So you've got one of those Roomba vacuums, but you're not sure how well it's covering the whole space. And you've got a bunch of LED lights and a camera. What do you do? You join the Roomba Art Flickr group and take a series of long-exposure photos, with the LEDs attached to your vac to show its progress. Brilliant and beautiful.